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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.tuscany.sca.binding.jms.provider;
import java.lang.reflect.InvocationTargetException;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.naming.NamingException;
import org.apache.tuscany.sca.binding.jms.impl.JMSBinding;
import org.apache.tuscany.sca.binding.jms.impl.JMSBindingConstants;
import org.apache.tuscany.sca.binding.jms.impl.JMSBindingException;
import org.apache.tuscany.sca.interfacedef.Operation;
import org.apache.tuscany.sca.invocation.Invoker;
/**
* Interceptor for the JMS binding.
*
* @version $Rev$ $Date$
*/
public class JMSBindingInvoker implements Invoker {
protected Operation operation;
protected String operationName;
protected JMSBinding jmsBinding;
protected JMSResourceFactory jmsResourceFactory;
protected JMSMessageProcessor requestMessageProcessor;
protected JMSMessageProcessor responseMessageProcessor;
protected Destination requestDest;
protected Destination replyDest;
public JMSBindingInvoker(JMSBinding jmsBinding,
Operation operation ) {
this.operation = operation;
operationName = operation.getName();
this.jmsBinding = jmsBinding;
jmsResourceFactory = jmsBinding.getJmsResourceFactory();
requestMessageProcessor = jmsBinding.getRequestMessageProcessor();
responseMessageProcessor = jmsBinding.getResponseMessageProcessor();
try {
requestDest = jmsResourceFactory.lookupDestination(jmsBinding.getDestinationName());
if (requestDest == null){
if (jmsBinding.getDestinationCreate().equals(JMSBindingConstants.CREATE_ALLWAYS)) {
requestDest = jmsResourceFactory.createDestination(jmsBinding.getDestinationName());
} else {
throw new JMSBindingException("JMS Destination " +
jmsBinding.getDestinationName() +
" not found while registering binding " +
jmsBinding.getName() +
" invoker");
}
}
replyDest = jmsResourceFactory.lookupDestination(jmsBinding.getResponseDestinationName());
if (replyDest == null){
if (jmsBinding.getResponseDestinationCreate().equals(JMSBindingConstants.CREATE_ALLWAYS)) {
replyDest = jmsResourceFactory.createDestination(jmsBinding.getResponseDestinationName());
} else {
throw new JMSBindingException("JMS Response Destination " +
jmsBinding.getDestinationName() +
" not found while registering binding " +
jmsBinding.getName() +
" invoker");
}
}
} catch (NamingException e) {
throw new JMSBindingException(e);
}
}
public org.apache.tuscany.sca.invocation.Message invoke(org.apache.tuscany.sca.invocation.Message msg) {
try {
Object resp = invokeTarget((Object[])msg.getBody(), (short)0);
msg.setBody(resp);
} catch (InvocationTargetException e) {
msg.setFaultBody(e.getCause());
} catch (Throwable e) {
msg.setFaultBody(e);
}
return msg;
}
public Object invokeTarget(Object payload, final short sequence) throws InvocationTargetException {
try {
Session session = jmsResourceFactory.createSession();
try {
Destination replyToDest = (replyDest != null) ? replyDest : session.createTemporaryQueue();
Message requestMsg = sendRequest((Object[])payload, session, replyToDest);
Message replyMsg = receiveReply(session, replyToDest, requestMsg.getJMSMessageID());
return responseMessageProcessor.extractPayloadFromJMSMessage(replyMsg);
} finally {
session.close();
}
} catch (JMSException e) {
throw new InvocationTargetException(e);
} catch (NamingException e) {
throw new InvocationTargetException(e);
}
}
public void stop() throws NamingException, JMSException{
jmsResourceFactory.closeConnection();
}
protected Message sendRequest(Object[] payload, Session session, Destination replyToDest) throws JMSException {
Message requestMsg = requestMessageProcessor.insertPayloadIntoJMSMessage(session, payload);
requestMsg.setJMSDeliveryMode(jmsBinding.getDeliveryMode());
requestMsg.setJMSPriority(jmsBinding.getPriority());
requestMessageProcessor.setOperationName(operationName, requestMsg);
requestMsg.setJMSReplyTo(replyToDest);
MessageProducer producer = session.createProducer(requestDest);
try {
producer.send(requestMsg);
} finally {
producer.close();
}
return requestMsg;
}
protected Message receiveReply(Session session, Destination replyToDest, String requestMsgId) throws JMSException,
NamingException {
String msgSelector = "JMSCorrelationID = '" + requestMsgId + "'";
MessageConsumer consumer = session.createConsumer(replyToDest, msgSelector);
Message replyMsg;
try {
jmsResourceFactory.startConnection();
replyMsg = consumer.receive(jmsBinding.getTimeToLive());
} finally {
consumer.close();
}
return replyMsg;
}
}
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